OPTICAL MODULE, OPTICAL SWITCH CONSTITUTING THE SAME, AND OPTICAL MATRIX SWITCH

• Main Authors: ISHII MOTOHAYA, YAMADA TAKASHI, OKUNO MASAYUKI, SOMA SHUNICHI, KITAGAWA TAKESHI, MINO SHINJI, HIMENO AKIRA, GO TAKASHI
• Format: Patent
• Language: English
• Published: 03.06.2004
• Edition: 7
• Subjects: DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH ISMODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THEDEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY,COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g.SWITCHING, GATING, MODULATING OR DEMODULATING; FREQUENCY-CHANGING; NON-LINEAR OPTICS; OPTICAL ANALOGUE/DIGITAL CONVERTERS; OPTICAL LOGIC ELEMENTS; OPTICS; PHYSICS; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF

PROBLEM TO BE SOLVED: To realize reduction of an electric wiring area in a PLC (Planar Lightwave Circuit) substrate, reduction of a module size by dispensing with IC mounting substrate, reduction of the number of wire bonding lines between the PLC substrate and an electronic circuit board and simplification of an inspection process in an optical module for controlling output characteristics with electricity. SOLUTION: An optical waveguide circuit (PLC) and an electronic circuit (IC) 109 to drive the PLC are directly mounted on an identical substrate 101. The IC109 is not resin sealed, but a bare chip is directly mounted and is subsequently sealed. By grouping and concentrating wiring lines of the IC109 on the PLC substrate, the optical module is made to be high-density and is downsized. COPYRIGHT: (C)2004,JPO